/* 기본 설정 */
body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* 헤더 */
.header {
    text-align: center;
    margin-bottom: 20px;
}

.header h1 {
    margin: 0;
    font-size: 2em;
    color: #333;
}

/* 폼 */
form {
    margin: 20px 0;
}

form div {
    margin-bottom: 15px;
}

form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

form input[type="text"], form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

form button {
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    color: #fff;
    background-color: #007bff;
    border: none;
    cursor: pointer;
}

form button:hover {
    background-color: #0056b3;
}

/* 오류 메시지 */
ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    color: #d9534f;
}

/* 푸터 */
.footer {
    text-align: center;
    padding: 20px;
    background-color: #333;
    color: #fff;
    margin-top: 20px;
}